
.b{
    width: 100%;
    height: 638px;
}

.b1{
    width: 100%;
    height: 38px;
}

.b2{
    width: 100%;
    height: 600px;
}

.b3{
    margin: 0 auto;
    padding: 0;

    width: 1080px;
    height: 600px;
}

.b4{
    margin-bottom: 25px;
    width: 100%;
    height: 25px;
    text-align: center;
}

.b44{
    height: 50px;
    line-height: 50px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    font-family: PingFangSC-Medium, serif;
    font-size: 25px;
    display:block;
}

.b5{
    width: 100%;
    height: 550px;
}

#b51{
    margin-left: 0;
    margin-right: 15px;
    float: right;
}

.b51{
    margin-left: 15px;

    width: 480px;
    height: 100%;

    float: left;
}

.b511{
    width: 45px;
    height: 350px;
    margin-top: 50px;
    float: left;
}

.b52{
    width: 100%;
    height: 100px;
}

.b55{
    margin: 0 50px;

    width: 380px;
    height: 100%;
}

.b53{
    width: 100%;
    height: 50px;
}

.b54{
    width: 100%;
    height: 25px;
}

.b57{
    width: 200px;
    height: 200px;
    background-color: rgba(239, 244, 255, 0.2);
    border-radius: 10px;
    border: 1px dashed rgba(255, 255, 255, 1);
    text-align: center;
    display: table-cell;
    vertical-align: middle;
    font-size: 20px;
}

.b56{
    width: 100%;
    height: 50px;
}

input.inp{
    height: 40px;
    background-color: rgba(255, 255, 255, 0.5);
}

input.log{
    width: 100%;
    height: 45px;
    font-size: 16px;
}

.register{
    width: 100%;
    height: 12px;
    font-size: 12px;
}